JP5992965B2 - Portable information device, fan control method for portable information device, and computer-executable program - Google Patents

Description

  The present invention relates to a portable information device, a fan control method for a portable information device, and a computer-executable program.

  2. Description of the Related Art A portable information device such as a notebook personal computer is provided with a heating element such as a CPU or a graphic chip inside the device casing. Therefore, a fan device for cooling these heating elements is often mounted inside the device casing of the portable information device.

  By the way, in recent years, there has been a growing demand for thinning portable information devices such as notebook personal computers. For this reason, devices such as a device housing and a fan device disposed in the device housing are being made thinner, and a gap between the device housing and the device is becoming smaller. For this reason, for example, when the user strongly presses the keyboard device or applies external force by grasping the upper and lower surfaces of the device casing, the device casing bends inward and the device casing Walls can interfere with internal equipment.

  More specifically, there is a possibility that the upper surface of the fan housing is pressed by the bent device housing, or the device housing enters the inside of the air inlet opening on the upper surface and interferes with the rotating portion of the fan device. There is. If the equipment housing interferes with the fan device, the smooth rotation is disturbed and abnormal noise is generated, or rotation cannot be performed, and the fan device may be deformed or damaged depending on the degree of interference. There is a concern that this abnormality will occur.

JP 2014-42385 A JP 2013-240233 A

  The present invention has been made in view of the above, and a portable information device, a fan control method for a portable information device, and a computer that can prevent the occurrence of abnormality due to the external force of the fan device The purpose is to provide a possible program.

  In order to solve the above-described problems and achieve the object, the present invention provides a portable information device provided with a fan device in a housing, wherein a user grips a portion of the housing corresponding to the fan device. Detecting means for detecting, and control means for stopping rotation of the fan device when the detecting means detects gripping by a user on a portion of the housing corresponding to the fan device. And

  According to a preferred aspect of the present invention, it is desirable that the control means reduce the power consumption of the CPU when stopping the rotation of the fan device.

  According to a preferred aspect of the present invention, the fan device is disposed below the keyboard, and the detection means is disposed in the vicinity of the fan device, and a plurality of keys of the keyboard are pressed simultaneously. When this is detected, it is desirable to detect gripping by a user with respect to a portion of the housing corresponding to the fan device.

  Further, according to a preferred aspect of the present invention, the fan device is disposed below the keyboard, and the detection means is disposed in the vicinity of the fan device, and the keyboard key continues for a predetermined time or more. It is desirable to detect gripping by a user with respect to a portion of the housing corresponding to the fan device when it is detected that the button is pressed.

  According to a preferred aspect of the present invention, the fan device is disposed below the keyboard, and the detection means is disposed near the fan device and detects that a key of the keyboard is pressed. In addition, when the tilt of the portable information device is detected, it is desirable to detect gripping by the user with respect to a portion of the housing corresponding to the fan device.

  According to a preferred aspect of the present invention, it is desirable that the portable information device is a clamshell type notebook personal computer.

  According to a preferred aspect of the present invention, it is desirable that the portable information device is a convertible notebook computer capable of taking a tablet computer configuration and a notebook computer configuration.

  In order to solve the above-described problems and achieve the object, the present invention provides a fan control method for a portable information device provided with a fan device in a housing, which corresponds to a portion of the housing corresponding to the fan device. A detection step of detecting gripping by a user, and a control step of stopping rotation of the fan device when gripping by the user with respect to a portion of the housing corresponding to the fan device is detected in the detection step. It is characterized by that.

  In order to solve the above-described problems and achieve the object, the present invention is a program mounted on a portable information device having a fan device in a housing, the portion corresponding to the fan device in the housing A detection step of detecting gripping by the user with respect to the control unit, and a control step of stopping rotation of the fan device when the detection step detects gripping by the user with respect to a portion corresponding to the fan device of the housing. The computer is executed.

  In order to solve the above-described problems and achieve the object, the present invention relates to a portable information device including a rotating body driving device in a housing, the portion corresponding to the rotating body driving device of the housing. Detection means for detecting gripping by a user, and control means for stopping rotation of the rotating body driving device when the detecting means detects gripping by the user with respect to a portion of the housing corresponding to the rotating body driving device. And.

  According to the present invention, it is possible to prevent the occurrence of abnormality due to the fan device receiving external force.

FIG. 1 is a perspective view schematically showing a notebook PC which is an example of a portable information device according to an embodiment. FIG. 2 is a perspective view of the main part of the cooling device as viewed from the left. FIG. 3 is a diagram illustrating a state in which a portion of the notebook PC housing corresponding to the fan device is gripped by the user. FIG. 4 shows a schematic partial cross-sectional view of the fan device of FIG. FIG. 5 is a hardware configuration diagram illustrating a schematic configuration of the notebook PC. FIG. 6 is a flowchart for explaining an example of an outline of the fan device failure prevention process executed by the embedded controller. FIG. 7 is a perspective view showing a notebook PC configuration of the portable information device according to the first modification. FIG. 8 is a perspective view illustrating a tablet PC configuration (a keyboard is facing upward) of the portable information device according to the first modification. FIG. 9 is a perspective view showing a tablet PC configuration of the portable information device according to the first modification (the touch screen is facing upward). FIG. 10 is a diagram illustrating a state where the user holds the portable information device illustrated in FIG.

  Hereinafter, embodiments of a portable information device, a fan control method for a portable information device, and a computer-executable program according to the present invention will be described. Although the components of the present invention are generally illustrated in the drawings herein, it can be readily understood that they may be arranged and designed in a wide variety of configurations with various configurations. Accordingly, the following more detailed description of the apparatus, method, and program embodiments of the present invention is not intended to limit the scope of the invention as set forth in the claims, but merely to the selected implementation of the invention. It is intended as an example only, and is merely illustrative of selected embodiments of an apparatus, system and method consistent with the present invention as set forth in the claims herein. Those skilled in the art will appreciate that the present invention may be implemented without one or more of the specific details or with other methods, components, and materials. Moreover, you may implement this Embodiment and a modification individually or in combination.

(Embodiment)
The case where the portable information device according to the present embodiment is applied to a notebook personal computer will be described in detail below with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a notebook personal computer (hereinafter, also simply referred to as “notebook PC”) as an example of a portable information device according to an embodiment. The notebook PC shown in FIG. 1 is a so-called clamshell laptop PC. As shown in FIG. 1, the notebook PC 1 includes a main body housing 10 and a lid body 11.

  The main body housing 10 is a box-shaped object including an upper surface portion 12, a left side surface portion 13, a right side surface portion 14, a front surface portion 15, a rear surface portion 16, and a bottom surface portion (not shown). A keyboard device 17 and a touch pad 18 are provided on the upper surface portion 12 of the main body housing 10. The keyboard device 17 is an input device that is configured by disposing a membrane switch sheet and a plurality of keys (tops) 17a on the upper surface of a base member formed of a metal plate, although details are not explicitly shown in the drawing. The main body housing 10 and the keyboard device 17 are also referred to as “housings”. A palm rest 19 is provided at a portion located on the front side of the upper surface portion 12.

  The lid 11 is provided with a display device 21 composed of a liquid crystal display, an organic EL display, or the like on a surface facing the upper surface portion 12 of the main body housing 10, and a hinge at a rear edge of the main body housing 10. The lower end portion of the portion 22 is rotatably supported. When the lid 11 is opened with respect to the main body housing 10, the display device 21 is exposed toward the front side of the main body housing 10 and the upper surface of the main body housing 10 is opened. On the other hand, if it is rotated via the hinge portion 22, it functions as a cover that simultaneously covers the upper surface portion 12 of the main body housing 10 and the display device 21.

  A plurality of exhaust ports 23 are arranged side by side in the front-rear direction on the back side of the left side surface portion 13 of the main body housing 10. The exhaust port 23 is a rectangular opening for discharging the air sent from the cooling device 30 (see FIG. 2) disposed inside the main body housing 10 to the outside. Although not shown, the right side surface portion 14, the rear surface portion 16, the bottom surface portion, or the like of the main body housing 10 is provided with an air inlet for taking outside air into the main body housing 10.

  Inside the main body housing 10 are a plurality of electronic components (not shown) that generate heat due to operations of a CPU, a memory, and a power supply (not shown), and a cooling device 30 (FIG. 2) for cooling the plurality of electronic components. And an acceleration sensor 50 for detecting the inclination of the notebook PC 1 by detecting the acceleration in the XYZ-axis directions.

  FIG. 2 is a perspective view of the main part of the cooling device 30 as viewed from the left side, and shows a part of the internal structure exposed. FIG. 3 is a diagram illustrating a state in which a portion corresponding to the fan device 33 of the casing of the notebook PC 1 is gripped by the user. FIG. 4 shows a schematic partial cross-sectional view of the fan device 33 of FIG.

  As shown in FIG. 2, the cooling device 30 is disposed on the rear surface portion 16 side of the left side surface portion 13 of the main body housing 10. The cooling device 30 includes a heat radiating unit 31 and a fan device 33. The heat dissipating unit 31 is arranged in a manner in which heat dissipating fins 313 as a plurality of heat dissipating members are erected at predetermined intervals between an upper heat transfer plate 311 constituting the upper surface and a lower heat transfer plate 312 constituting the lower surface. The overall shape is a rectangular parallelepiped. Here, the upper heat transfer plate 311, the lower heat transfer plate 312, and the heat radiation fins 313 are made of a metal material having a high thermal conductivity such as copper or an aluminum alloy. In such a heat radiating unit 31, a large number of openings are formed along the direction in which the heat radiating fins 313 are arranged side by side (front-rear direction). Air is sent out from an opening (not shown) on the left side, and air is discharged from the exhaust port 23 to the outside.

  The fan device 33 includes, for example, a motor unit 331 serving as a driving source, a rotating unit 332 that is rotationally driven by the motor unit 331, and an impeller that includes a plurality of radially extending blades provided on the outer peripheral side of the rotating unit 332. And a fan housing 334 that houses the motor unit 331, the rotating unit 332, and the impeller unit 333 (see FIG. 4). The rotating part 332 includes a shaft 332a and a lid head 332b provided on the head of the shaft 332a. The fan housing 334 includes an upper surface cover part 334a, a side surface cover part 334b, and a lower surface cover part 334c. The fan device 33 is a so-called centrifugal fan, and is configured to send out air in the radial direction (centrifugal direction) of the rotating portion 332 when driven. Various types of fan devices can be used as the fan device 33. For example, a fan device using a fluid dynamic pressure bearing may be used.

  As shown in FIGS. 3 and 4, when the main body housing 10 (housing) corresponding to the fan device 33 is grasped by hand and the main body housing 10 is bent to some extent in the collapse direction, for example, the fan device 30 The base plate 10a of the main body housing 10 disposed above and below the keyboard device 17 interferes with the upper surface cover portion 334a of the fan housing 334 to press and deform it, and further, the upper surface cover portion 334a. May enter the opening 334a1 of the fan device 33 and directly interfere with the rotating portion 332 and the impeller portion 333 of the fan device 33.

  Therefore, in the present embodiment, when it is detected that a portion corresponding to the fan device 33 of the main body housing 10 is gripped by the user, the rotation of the motor unit 331 of the fan device 33 is stopped, and the fan device 33 is stopped. Prevents the occurrence of abnormalities due to external force. Further, in the present embodiment, whether or not a portion corresponding to the fan device 33 of the main body housing 10 is gripped by the user is detected by detecting a key press of the keyboard device 17 without newly providing a sensor. Judgment.

  FIG. 5 is a hardware configuration diagram illustrating a schematic configuration of the notebook PC 1. The CPU 51 incorporates a memory controller and a PCI Express controller, and is connected to the main memory 56, the video card 55, and the chip set 58. The CPU 51 is an arithmetic processing unit having a central function of the notebook PC 1 and executes an OS (for example, Windows (registered trademark)), a BIOS, a device driver, or an application program. The CPU 51 has a large power consumption and a large amount of heat generation among the electronic devices of the notebook PC 1. The CPU 51 corresponds to a technology called speed step (SS) and a technology called throttling. Speed step is a technology developed by Intel Corporation in the United States that allows the CPU operating voltage and operating frequency to be set freely. In the speed step, the BIOS 61 sets the maximum operating frequency allowed when the system is in a register in the CPU 51, so that the operating frequency at which the CPU 51 actually operates can be reduced stepwise.

  When the CPU 51 reduces the operating frequency, it simultaneously reduces the operating voltage to a value necessary for operating the CPU 51 at the operating frequency. When executing the speed step, the CPU 51 instructs the embedded controller 52 to cause the DC / DC converter 44 to change the voltage of the CPU 51 to match the set maximum operating frequency. The power consumption of the CPU 51 is reduced by the speed step (when the power consumption is reduced, the heat generation amount is also reduced). Throttling is a function of switching the average processing speed by causing the CPU 51 to operate and stop at regular intervals to perform intermittent operation. In order to execute throttling, a BIOS (not shown) sets valid / invalid throttling and a duty ratio (throttling ratio) in a register of the CPU 51. In both the speed step and the throttling, the power consumption (heat generation amount) of the CPU 51 can be changed step by step.

  The video card 55 is a subsystem for realizing functions related to image display, and includes a video controller. The video controller processes a drawing command from the CPU 51, writes the processed drawing information into the video memory, reads out the drawing information from the video memory, and outputs it to the display device 21 as drawing data.

  The main memory 56 is a writable memory used as an execution program reading area of the CPU 51 or a work area for writing processing data of the execution program. For example, it is composed of a plurality of DRAM chips. The execution program includes an OS (for example, Windows (registered trademark) XP, Vista, 7, 8, 8.1, etc.) capable of power control based on ACPI (Advanced Configuration and Power Interface), peripheral devices, etc. Various drivers for operation, utility programs, application programs for executing specific tasks, and the like are included. These execution programs are stored in the storage device (HDD or SDD) 20.

  The chip set 58 includes a controller such as SATA, USB, PCI Express, and LPC, and an RTC (Real Time Clock). The storage device 20 is connected to the SATA controller, the LAN card 53 is connected to the PCI Express controller, and the USB receptacle 59 is connected to the USB controller. An RJ45 receptacle 55 is connected to the LAN card 53. An embedded controller 52 is connected to the LPC controller.

  The embedded controller 52 is connected to the keyboard device 17, the touch pad 18, the power supply circuit 40, the fan drive unit 70, and the acceleration sensor 50. The embedded controller 52 is a microcomputer composed of a processor, a ROM that stores a control program (FW) executed by the processor, a RAM, and the like. A timer and a digital input / output terminal are provided. The embedded controller 52 can execute a program related to the management of the internal operating environment of the notebook PC 1 independently of the CPU 51.

  The embedded controller 52 controls the keyboard device 17 and the touch pad 18. The keyboard device 17 is a keyboard of a predetermined standard, and includes various keys for inputting characters, commands, and the like, and outputs information on pressed keys to the embedded controller 52. The embedded controller 52 detects the pressed key based on the pressed key information input from the keyboard device 17.

  The touch pad 18 is a pointing device that moves a cursor on the screen, and outputs operated coordinate information to the embedded controller 52.

  The embedded controller 52 controls the acceleration sensor 50. The acceleration sensor 50 detects three-axis (X / Y / Z-axis) acceleration and outputs acceleration information to the embedded controller 52. The embedded controller 52 detects the vibration and inclination of the notebook PC 1 by analyzing the acceleration information obtained by the acceleration sensor 50.

  The embedded controller 52 controls the power supply circuit 40. The power supply circuit 40 mainly includes an AC / DC adapter 41, a main battery pack 451, a power controller 42, a charger 43, and a DC / DC converter 44.

  The embedded controller 52 controls the DC / DC converter 44 via the power controller 42 to supply power to the system device mounted on the notebook PC 1. The power controller 42 is a semiconductor logic circuit that controls the power supply of the notebook PC 1, and controls the DC / DC converter 44 based on an instruction from the embedded controller 52. The DC / DC converter 44 converts the DC voltage supplied from the main battery pack 45 or the AC / DC adapter 41 into a plurality of voltages and supplies power to the system device.

  When the AC / DC adapter 41 is connected to a commercial power supply, the embedded controller 52 converts the DC voltage supplied from the AC / DC adapter 41 into a plurality of voltages and supplies power to the system device. The main battery pack 101 is charged by controlling the battery charger 43 (AC drive). On the other hand, when the AC / DC adapter 41 is not connected to a commercial power source, the embedded controller 52 converts the DC voltage supplied from the main battery pack 45 into a plurality of voltages and supplies power to the system device. To control (battery drive).

  The fan drive unit 70 is a drive circuit that drives the fan device 33 in accordance with the control of the embedded controller 52. The embedded controller 52 performs on / off control of the motor unit 331 of the fan device 33 (also referred to as “rotation of the fan device 33”) and stepwise control of the rotation speed via the fan drive unit 70. The embedded controller 52 outputs a control signal for turning on / off the rotation of the fan device 33 and a control signal for instructing the rotation speed to the fan drive unit 70. The fan drive unit 70 performs on / off control of rotation of the fan device 33 and stepwise control of the rotation speed based on a control signal input from the embedded controller 52.

  Further, the embedded controller 52 stops the rotation of the fan device 33 based on the detection results of the keyboard device 17 and the acceleration sensor 50 in order to prevent the failure (abnormality) of the fan device 33. Execute. More specifically, the embedded controller 52 detects gripping by the user with respect to a portion corresponding to the fan device 33 of the main body housing 10 (a portion of the main body housing 10 existing in the vicinity of the fan device 33). The rotation of the fan device 33 is stopped when the user grasps the portion corresponding to the fan device 33 of the housing 10. For example, when the embedded controller 52 detects that a plurality of keys arranged near (immediately above) the fan device 33 are simultaneously pressed, the keys arranged near the fan device 33 continue for a predetermined time or more. The part corresponding to the fan device 33 of the main body housing 10 when a key placed near the fan device 33 is pressed and the inclination of the notebook PC 1 is detected. The gripping by the user is detected.

  FIG. 6 is a flowchart for explaining an example of an outline of the fan device failure prevention process executed by the embedded controller 52. The fan device failure prevention process shown in FIG. 6 is repeatedly executed. In FIG. 6, the embedded controller 52 detects whether or not a key of the keyboard device 17 is pressed (step S1). If the key of the keyboard device 17 is not pressed (“No” in step S1), the process proceeds to step S6.

  When pressing of the key of the keyboard device 17 is detected (“Yes” in step S1), the embedded controller 52 determines whether or not the pressed key is a key arranged in the vicinity of the fan device 33. (Step S2). The keys arranged in the vicinity of the fan device 33 are, for example, keys arranged immediately above the fan device 33. For example, “ESC”, “F1”, “F2”, “F3”, “F4” , “1”, “2”, “3”, “4”, “← →”, “Q”, “W”, “E”, “R”, “Caps Lock”, “A”, “S” , “D”, “F” and the like.

  When the pressed key is not a key arranged near the fan device 33 (“No” in step S2), the process proceeds to step S6. If the pressed key is a key arranged in the vicinity of the fan device 33 (“Yes” in step S2), the embedded controller 22 determines whether there are a plurality of pressed keys. (Step S3). This is because when the user grips and moves the notebook PC 1, a plurality of keys of the keyboard device 17 are often pressed.

  If there are a plurality of pressed keys (“Yes” in step S3), the process proceeds to step S7. If there are not a plurality of pressed keys (“No” in step S3), the embedded controller 52 determines whether or not the key is continuously pressed for a predetermined time (for example, 3 seconds) (step S4). ). This is because when the user holds the notebook PC 1 and moves, the keys of the keyboard device 17 are often pressed for a long time.

  When the key is continuously pressed for a predetermined time or longer (“Yes” in step S4), the process proceeds to step S7. If the key has not been pressed for a predetermined time or longer (“No” in step S4), the embedded controller 52 determines whether the notebook PC 1 is tilted (step S5). This is because the notebook PC 1 is often tilted when the user grips and moves the notebook PC 1.

  If the notebook PC 1 is tilted (“Yes” in step S5), the process proceeds to step S7. If the notebook PC 1 is not tilted (“No” in step S5), the process proceeds to step S6.

  In step S6, the embedded controller 52 determines that the portion corresponding to the fan device 33 of the housing is not gripped.

  In step S7, the embedded controller 52 determines that the portion of the housing corresponding to the fan device 33 is gripped, and stops the rotation of the fan device 33 (step S8). Furthermore, when the embedded controller 52 stops the fan device 33, the embedded controller 52 transmits a command for instructing reduction of power consumption of the CPU 51 to the CPU 51, and the CPU 51 commands for instructing reduction of power consumption from the embedded controller 52. For example, the power consumption (heat generation amount) of the CPU 51 may be reduced by the above-described speed step or throttling. Thereby, it is possible to reduce the heat generation of the CPU 51 when the fan device 33 is stopped.

  As described above, according to the present embodiment, the embedded controller 52 stops the rotation of the fan device 33 when detecting gripping by the user with respect to the portion of the housing corresponding to the fan device 33. Therefore, it is possible to prevent the occurrence of abnormalities (occurrence of abnormal noise, rotational fluctuation, inability to rotate, deformation / breakage of the fan device, etc.) due to the fan device 33 receiving external force.

  Further, according to the present embodiment, when the rotation of the fan device 33 is stopped, the embedded controller 52 reduces the power consumption of the CPU 51. Therefore, even if the rotation of the fan device 33 is stopped. It is possible to prevent the CPU 51 from generating heat.

  Further, according to the present embodiment, when the embedded controller 52 detects that a plurality of keys arranged in the vicinity of the fan device 33 are simultaneously pressed, the key arranged in the vicinity of the fan device 33 is When it is detected that the button is continuously pressed for a predetermined time or when a key arranged near the fan device 33 is pressed and the inclination of the notebook PC 1 is detected, the fan device 33 of the housing is Since gripping by the user with respect to the corresponding portion is detected, it is possible to detect gripping by the user with a low-cost configuration without providing a new sensor.

(Modification 1)
In the said embodiment, although the example which has arrange | positioned the fan apparatus 33 to the rear surface part 16 side of the left side part 13 of the main body housing | casing 10 was shown, the position which arrange | positions the fan apparatus 33 is not restricted to this, You may decide to arrange | position in another position. In addition, a clamshell type notebook personal computer has been shown as an example of a portable information device. However, the present invention is not limited to this. Good.

  Modification 1 will be described with reference to FIGS. The portable information device according to Modification 1 is a so-called convertible notebook computer, and can be used as a notebook PC and a tablet PC. FIG. 7 is a perspective view showing a notebook PC configuration of the portable information device according to the first modification. FIG. 8 is a perspective view illustrating a tablet PC configuration (a keyboard is facing upward) of the portable information device according to the first modification. FIG. 9 is a perspective view showing a tablet PC configuration of the portable information device according to the first modification (the touch screen is facing upward). FIG. 10 is a diagram illustrating a state where the user holds the portable information device illustrated in FIG.

  As shown in FIGS. 7 to 9, the convertible notebook PC 100 includes a display-side casing 111 on which a touch screen 116 composed of an LCD and a touch sensor arranged on the LCD is disposed, a keyboard device 117, and a touch. A main body housing 112 in which a pad 118 is disposed. The display-side housing 111 and the main body housing 112 are connected via a pair of hinges 120. The main body housing 112 houses the fan device 130 and the like substantially at the center of the acceleration sensor 150 and the back side portion 119.

  The pair of hinges 120 connect the display-side housing 111 and the main body housing 112 so that the display-side housing 111 can rotate substantially 360 degrees (around the X axis) with respect to the main body housing 112. .

  As shown in FIG. 7, a state in which the display-side casing 111 is rotated 90 to 180 degrees with respect to the main body casing 112 is a notebook PC configuration. As shown in FIGS. 8 and 9, the tablet PC configuration is a state in which the display-side casing 111 is rotated 360 degrees with respect to the main body casing 112.

  As shown in FIG. 10, if the housing corresponding to the fan device 130 is gripped by the user, the fan device 130 may be abnormal as described above. A fan device failure prevention process may be performed.

(Modification 2)
In the above embodiment, the user's gripping of the housing corresponding to the fan device is detected based on pressing of a key on the keyboard device, but the present invention is not limited to this. For example, a proximity sensor may be provided at the position of the housing near the fan device, and when the contact of the user is detected by the proximity sensor, it may be determined that the portion of the housing corresponding to the fan device is gripped by the user. In addition, when a portion of the touch screen near the fan device is touched by the user, it may be determined that the housing of the portion corresponding to the fan device is gripped by the user.

(Modification 3)
In the above embodiment, the rotation of the fan device is stopped when the user grasps the portion corresponding to the fan device of the housing, but the present invention is not limited to the fan device, The present invention can also be applied to other rotating body drive devices in which an abnormality may occur when an external force is applied. Other rotating body drive devices are, for example, an optical disk device or a hard disk device.

  The embedded controller may stop the rotation of the rotating body driving device when detecting gripping by the user with respect to a portion of the housing corresponding to the rotating body driving device. A method for detecting gripping by a user with respect to a portion corresponding to the rotating body driving device of the housing is the same as described above.

1 Notebook PC (Clamshell laptop)
DESCRIPTION OF SYMBOLS 10 Main body housing | casing 11 Cover body 17 Keyboard apparatus 17a Key (top)
18 Touchpad 21 Display Device 22 Hinge Unit 30 Cooling Device 31 Heat Dissipation Unit 33 Fan Device 40 Power Supply Circuit 50 Acceleration Sensor 51 CPU
52 Embedded Controller 53 LAN Card 55 Video Card 58 Chip Set 70 Fan Drive Unit 100 Notebook PC (Convertible Notebook PC)
111 Display Side Housing 112 Main Body Housing 116 Touch Screen 117 Keyboard Device 118 Touch Pad
119 Back side portion 120 Hinge 130 Fan device 150 Acceleration sensor 331 Motor portion 332 Rotating portion 332a Shaft 332b Cover head 334 Fan housing 334a Upper surface cover portion 334b Side surface cover portion 334c Lower surface cover portion

Claims (10)

A portable information device having a fan device in a housing,
Detecting means for detecting gripping by a user with respect to a portion of the housing corresponding to the fan device;
Control means for stopping rotation of the fan device when the detection unit detects gripping by a user with respect to a portion of the housing corresponding to the fan device;
With
The fan device is disposed below the keyboard,
The detection means is a user for a portion of the housing corresponding to the fan device when detecting a predetermined state including pressing of one or more keys of the keyboard, which is arranged in the vicinity of the fan device. A portable information device characterized by detecting gripping by an object.   The portable information device according to claim 1, wherein the control unit reduces power consumption of the CPU when the rotation of the fan device is stopped. 3. The portable information device according to claim 1 , wherein the predetermined state is a state in which a plurality of keys of the keyboard disposed near the fan device are pressed simultaneously. 4. . The portable type according to claim 1 or 2 , wherein the predetermined state is a state in which a key of the keyboard disposed near the fan device is continuously pressed for a predetermined time or more. Information equipment. Wherein the predetermined condition, the are arranged in the vicinity of the fan device, the are keyboard keys are presses, and claim 1 or claim wherein said a state that the inclination detecting were of the portable information equipment Item 3. A portable information device according to Item 2 .   The portable information device according to any one of claims 1 to 5, wherein the portable information device is a clamshell type notebook personal computer.   The portable information device according to any one of claims 1 to 5, wherein the portable information device is a convertible notebook computer capable of taking a tablet computer configuration and a notebook computer configuration. machine. A fan control method for a portable information device having a fan device in a housing,
A detection step of detecting gripping by a user with respect to a portion corresponding to the fan device of the housing;
A control step of stopping rotation of the fan device when detecting gripping by a user with respect to a portion corresponding to the fan device of the housing in the detection step;
Only including,
The fan device is disposed below the keyboard,
In the detection step, when a predetermined state including pressing of one or a plurality of keys of the keyboard, which is disposed in the vicinity of the fan device, is detected, a user for a portion of the housing corresponding to the fan device A fan control method for a portable information device, characterized by detecting gripping by a portable telephone. A program installed in a portable information device having a fan device in a housing,
A detection step of detecting gripping by a user with respect to a portion corresponding to the fan device of the housing;
A control step of stopping rotation of the fan device when detecting gripping by a user with respect to a portion corresponding to the fan device of the housing in the detection step;
To the computer ,
The fan device is disposed below the keyboard,
In the detection step, when a predetermined state including pressing of one or a plurality of keys of the keyboard, which is disposed in the vicinity of the fan device, is detected, a user for a portion of the housing corresponding to the fan device A computer-executable program for detecting gripping by a computer. A portable information device having a rotating body driving device in a housing,
Detecting means for detecting gripping by a user with respect to a portion of the housing corresponding to the rotating body driving device;
Control means for stopping rotation of the rotating body drive device when the detecting means detects gripping by a user with respect to a portion of the housing corresponding to the rotating body drive device;
Equipped with a,
The rotating body driving device is disposed below the keyboard,
The detecting means corresponds to the rotating body driving device of the casing when detecting a predetermined state including pressing of one or more keys of the keyboard, which is arranged in the vicinity of the rotating body driving device. A portable information device characterized by detecting gripping by a user with respect to a portion to be performed.

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